diff --git a/litellm/litellm_core_utils/llm_cost_calc/utils.py b/litellm/litellm_core_utils/llm_cost_calc/utils.py
index 5c93a91806c..640ccdc803a 100644
--- a/litellm/litellm_core_utils/llm_cost_calc/utils.py
+++ b/litellm/litellm_core_utils/llm_cost_calc/utils.py
@@ -99,10 +99,8 @@ def _generic_cost_per_character(
             assert (
                 "input_cost_per_character" in model_info
                 and model_info["input_cost_per_character"] is not None
-            ), (
-                "model info for model={} does not have 'input_cost_per_character'-pricing\nmodel_info={}".format(
-                    model, model_info
-                )
+            ), "model info for model={} does not have 'input_cost_per_character'-pricing\nmodel_info={}".format(
+                model, model_info
             )
             custom_prompt_cost = model_info["input_cost_per_character"]
 
@@ -122,10 +120,8 @@ def _generic_cost_per_character(
             assert (
                 "output_cost_per_character" in model_info
                 and model_info["output_cost_per_character"] is not None
-            ), (
-                "model info for model={} does not have 'output_cost_per_character'-pricing\nmodel_info={}".format(
-                    model, model_info
-                )
+            ), "model info for model={} does not have 'output_cost_per_character'-pricing\nmodel_info={}".format(
+                model, model_info
             )
             custom_completion_cost = model_info["output_cost_per_character"]
         completion_cost = completion_characters * custom_completion_cost